CN101933711B

CN101933711B - Table with lifting device

Info

Publication number: CN101933711B
Application number: CN 201010267378
Authority: CN
Inventors: 封晏
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-27
Filing date: 2010-08-27
Publication date: 2013-04-10
Anticipated expiration: 2030-08-27
Also published as: CN101933711A

Abstract

The invention provides a table with a lifting device, which is characterized in that the cross section of three-stage telescoped column cavity is rectangle, and the rectangular column cavity is composed of two opposite staple-shaped cavities by way of riveting, wherein the directions of the two opens are opposite, screw fastening or welding butt by a lifting-pulley guide rail in the cavity; a bearing beam is arranged in the lower end of the inner portion of the first-stage column cavity; an upper pulley installation notch and a lower pulley installation notch are respectively arranged at the two walls of one side of the lower half part of the second-stage column cavity and one side of the lower half part of the third-stage column cavity, wherein at least one group of upper pulley installation notches is arranged; the position at the other side of the column cavity and opposite to the pulley-block notch of the third-stage column cavity is provide with a locating pulley, a built-in lever-type elastic wheel carrier and built-in elastic wheels; a pulley cavity is respectively fixed at the outer sides of the notches of the second-stage column cavity, and the cavity body of the pulley cavity and the corresponding position of the notch on the column cavity are also provided with pulley installation notches which are consistent with the notch on the column cavity; and the position at the other side of the column cavity opposite to the pulley-block notch of the column cavity is provided with a locating pulley frame and pulleys as well as an external lever-type elastic wheel carrier and external elastic wheels.

Description

Desk with lowering or hoisting gear

Technical field

The present invention relates to the office furniture technical field, concrete is a kind of desk with lowering or hoisting gear.

Background technology

Desk, espespecially workbench is used in office here, is that people work, learn required instrument.The size of desk, highly, the angle of desktop all can be to people's work, study, and healthy generation certain influence.At present, no matter be the workbench that top class in a kindergarten's platform, desk or professional and technical personnel are used for being engaged in computer 3D design, it is highly all fixed, and the user of different occupation, age, height yardstick is in the state of passive adaptation.Along with the progress of science and technology, qualitative change has occured in people's work, study, life style, and this makes to a certain extent existing desk can not adapt to and satisfies the comprehensive needs of people to different " desk " function.Now, the professional and technical personnel, especially for a long time use computer to carry out the professional and technical personnel of work, the long-term application of force state that keeps passively static state, cause therefrom obesity, cardiovascular and cerebrovascular disease, lumbar spine discomfort, constipation, and problems such as " overwork ", and " overwork " person great majority are the brain workers that are engaged in for a long time sitting posture.Therefore, the new work and study mode of a kind of people of adaptation and life style needs are provided, has the height of table top lowering or hoisting gear, thereby make the user select reasoningly differing heights to carry out the desk of work according to different instructions for uses, healthy to ensureing the user, raising work, learning efficiency and sustainable development have very important significance.

In the prior art, the computer desk (China Patent No. is ZL200420111423.2) that a kind of liftable keyboard plate is arranged, can adjust the height of keyboard, the worry that keyboard can not raise or reduce when it had solved teenager and special build person with computer, but this technology still can't solve the problems referred to above that the overwhelming majority person of bending over one's desk working exists.

Summary of the invention

The present invention is the patent that continues of patent (200710038315), provides a kind of height to regulate arbitrarily, and the use angle of top-adjustable, is convenient to the desk that the random reasoningly different posture of conversion of user is carried out work or study.

For achieving the above object, the present invention adopts following technical scheme:

A kind of desk with lowering or hoisting gear is characterized in that: described desk comprises desktop, seat plinth, lowering or hoisting gear, desktop load trailing arm and solid carriage; Lowering or hoisting gear comprises elevating mechanism and transmission mechanism; Elevating mechanism comprises mutually nested first order post chamber, post chamber, the second level and third level post chamber, the cross section in post chamber is rectangle, and this rectangle post chamber is connected with riveted joint, screw by the lifting pulley guide rail in the chamber by the cavity of the relative staple shape of two opening directions or butt welding forms; Or the also section bar of characteristic customization cavity and guide rail one accordingly; Lower end in first order post chamber is provided with the load crossbeam; Be respectively equipped with on two walls of post chamber, second level Lower Half one side, lower two parts pulley is installed recess, its middle and upper part divides pulley installation recess to be provided with at least one group, a pulley chamber is fixed respectively in each recess outside, pulley chamber cavity can become single face according to the sheet metal thickness cutting and bending, the semiclosed rectangular case that two sides or three side sealing close, by welding, screw or rivet are fixed on top sheave recess relevant position, post chamber, the second level, or also can thicker material by after the machine cuts machine-shaping with screw, rivet or be weldingly fixed in top sheave recess relevant position, post chamber, the second level, cavity up and down component is opened, and also can organize up and down one; Pulley chamber cavity also is provided with the pulley consistent with post chamber upper notch with post chamber upper notch opposite position recess is installed; And be provided with positioned pulley frame and external lever bullet bearing up pulley frame in the opposite side position, post chamber relative with this post chamber assembly pulley recess; On two walls of third level post chamber Lower Half one side, also be respectively equipped with upper and lower two parts pulley recess is installed, its middle and upper part is divided and is provided with at least one group of pulley recess is installed, the post chamber opposite side two wall positions relative at this assembly pulley recess are provided with the positioning pulley recess, and are provided with built-in lever bullet bearing up pulley frame in the post chamber below this positioning pulley recess; Be slidingly connected with pulley and slide rail between each post chamber, pulley is arranged on the recess or wheel carrier in above-mentioned post chamber by wheel shaft, wherein post chamber in the second level is arranged in the first order post chamber and does lifting based on first order post chamber and slide, and third level post chamber is arranged in the post chamber, the second level and does lifting based on post chamber, the second level and slide; Opposite side is provided with positioned pulley frame, pulley and external lever bullet bearing up pulley frame and bullet bearing up pulley accordingly on post chamber, the second level wall between first order post chamber and the post chamber, the second level; Also be provided with accordingly positioning pulley in the positioning pulley recess on the third level post chamber wall opposite side between post chamber, the second level and third level post chamber and thereunder be provided with built-in lever bullet bearing up pulley frame and the bullet bearing up pulley.

Lifting column, seat plinth and the desktop load trailing arm of described desktop below is independent, and lifting column only has one, and lifting column can pass through the driven by shaking lifting, at this moment desk

---the relevant position is provided with the first screw putter that adapts with first order post chamber in first order post chamber, the relevant position is provided with the second screw putter that adapts with post chamber, the second level in post chamber, the second level, and the relevant position is provided with the 3rd screw putter that adapts with third level post chamber in third level post chamber; The top of wherein said the 3rd screw putter is established a load bearing and is rotatably connected with top, third level post chamber, and the other end of this described the 3rd screw putter is by the internal thread engagement of its external screw thread and the second screw putter upper end; The other end of described the second screw putter is by the internal thread engagement of its external screw thread and the first screw putter upper end; The lower end of described the first screw putter is fixed on the load crossbeam of bottom, first order post chamber; The elevating movement that the second screw putter and the 3rd screw putter all can stretch state by the rotation of screw rod; And

---below the load bearing on the 3rd screw putter top, establish a bevel gear that is fixedly connected with the 3rd screw putter; Can establish a screw rod location bearing under the 3rd screw putter bevel gear, this screw rod location bearing is fixedly installed on the wall of third level post chamber by a support;

---in lifting column desktop load trailing arm or thereunder be provided with the hand-operated lifting handlebar mechanism, this mechanism is made of the bearing block of crank, kinematic link, kinematic link telescopic and fixed conveyor connecting rod telescopic; Bearing block is fixedly connected on two walls in third level post chamber by a crane span structure, kinematic link telescopic one end is the cannulated sleeve that both sides have two chutes, the other end is relatively thin solid cylinder, this kinematic link telescopic and its solid cylinder also can be divided into two detachable parts, can tie by joint tongue or transmission and connect transmission, the solid cylinder of kinematic link telescopic is fixedly connected with a bevel gear after passing bearing block upper bearing (metal) endoporus, and this bevel gear then becomes an angle of 90 degrees engagement with the 3rd screw putter bevel gear; The kinematic link that one end is provided with a transmission pilot pin is arranged in the kinematic link telescopic, this kinematic link is can be along transversal stretching slippage in the chute length distance in cannulated sleeve under the restriction of transmission pilot pin, but telescopic can only be under the drive of kinematic link pilot pin synchronous rotary; The other end of kinematic link is provided with crank, and is fixed in the desktop load trailing arm or the below by an axle sleeve, bearing block or bearing fixed arm;

Described desk has single lifting column pattern, this moment, lifting column, seat plinth and the desktop load trailing arm of desktop below were independent, lifting column only has one, and lifting column can be realized lifting by the motor driving scroll turbine, and this transmission mechanism has two kinds of set-up modes that Essential Action is identical:

First kind of way, when this transmission mechanism was located at upper end, third level post chamber, the first screw putter lower end was fixed on the load crossbeam of lower end in the first order post chamber; And below the load bearing on the 3rd screw putter top, be fixedly installed a turbine; Respectively establish a bearing block with bearing with turbine corresponding height position on the chamber wall of both sides, third level post chamber, scroll bar and turbine engagement also are arranged on this diaxon bearing, and an end of scroll bar links to each other with the rotor of the motor that is arranged on the outside, third level post chamber;

The second way, when this transmission mechanism was located at lower end, first order post chamber, the 3rd screw putter top was inserted it by an axle bolt and is fixedly connected with upper end, third level post chamber bolt; The load crossbeam of lower end is established a load bearing in first order post chamber, and this bearing is nested in the turbine, and the turbine top is fixedly connected with the first screw putter lower end; Respectively establish a bearing block with bearing with turbine corresponding height position on the chamber wall of both sides, first order post chamber, scroll bar and turbine engagement also are arranged on this diaxon bearing, and an end of scroll bar links to each other with the rotor of the motor that is arranged on the outside, first order post chamber;

Described single lifting column pattern can adopt synchronizing wheel toothed belt transmission mode, and lifting column can be realized lifting by motor-driven synchronizing wheel Timing Belt, and this transmission mechanism also has two kinds of identical set-up modes of Essential Action:

First kind of way when this transmission mechanism is located at upper end, third level post chamber, fixed on the load crossbeam of lower end in the first order post chamber in the first screw putter lower end week; And below the load bearing on the 3rd screw putter top, be fixedly installed a synchronizing wheel; Offer a punch holes with synchronizing wheel corresponding height position on the chamber wall of third level post chamber one side, Timing Belt passes this hole the 3rd screw putter synchronizing wheel is linked to each other with driving synchronizing wheel on the rotor that is arranged on third level post chamber one side outside;

The second way, when this transmission mechanism was located at lower end, first order post chamber, the 3rd screw putter top was inserted it by an axle bolt and is fixedly connected with upper end, third level post chamber bolt; The load crossbeam of lower end is established a load bearing in first order post chamber, and this bearing is nested in the synchronizing wheel, and the synchronizing wheel top is fixedly connected with the first screw putter lower end; Offer a punch holes with synchronizing wheel corresponding height position on the chamber wall of first order post chamber one side, Timing Belt passes this hole the first screw putter synchronizing wheel is linked to each other with driving synchronizing wheel on the rotor that is arranged on first order post chamber one side outside;

Described desk also has two lifting column patterns, the lifting column of desktop below, seat plinth and lifting column desktop load trailing arm are left-right symmetry and are located at both sides, desktop below at this moment, lifting column has two, link to each other with desktop solid carriage by seat plinth carrier bar, post chamber connecting plate, Timing Belt cover between the two, and with the driven by shaking lifting, this moment desk:

---the relevant position is provided with the first screw putter that adapts with first order post chamber in first order post chamber, the relevant position is provided with the second screw putter that adapts with post chamber, the second level in post chamber, the second level, and the relevant position is provided with the 3rd screw putter that adapts with third level post chamber in third level post chamber; The top of wherein said the 3rd screw putter is established a load bearing and is rotatably connected with top, third level post chamber, and the other end of this described the 3rd screw putter is by the internal thread engagement of its external screw thread and the second screw putter upper end; The other end of described the second screw putter is by the internal thread engagement of its external screw thread and the first screw putter upper end; The other end of described the first screw putter is fixed on the load crossbeam of bottom, first order post chamber; The elevating movement that the second screw putter and the 3rd screw putter all can stretch state by the rotation of screw rod;

---establish a bevel gear that is fixedly connected with the 3rd screw putter below the load bearing on the 3rd screw putter top in the lifting column of hand-operated lifting crank one side; Can establish a screw rod location bearing under the 3rd screw putter bevel gear, this screw rod location bearing is fixedly installed on the wall of third level post chamber by a support;

---lifting column third level post chamber and vertical connection of desktop load trailing arm, in lifting column desktop load trailing arm or thereunder be provided with the hand-operated lifting handlebar mechanism, this mechanism has the bearing block of crank, kinematic link, kinematic link telescopic and fixed conveyor connecting rod telescopic to consist of; Bearing block is fixed on two walls in third level post chamber by a crane span structure, kinematic link telescopic one end is the cannulated sleeve that both sides have two chutes, the other end is relatively thin solid cylinder, the solid cylinder of kinematic link telescopic is fixedly connected with a bevel gear after passing bearing block upper bearing (metal) endoporus, and this bevel gear then becomes an angle of 90 degrees engagement with the 3rd screw putter bevel gear; The kinematic link that one end is provided with a transmission pilot pin is arranged in the kinematic link telescopic, this kinematic link is can be along transversal stretching slippage in the chute length distance in sleeve under the restriction of transmission pilot pin, but telescopic can only be under the drive of kinematic link pilot pin synchronous rotary; The other end of kinematic link is provided with crank, and by a bearing block or bearing fixed arm be fixed in the desktop load trailing arm or below; And

---establish a synchronizing wheel that is fixedly connected with the 3rd screw putter above or below the bevel gear that the 3rd screw putter in being provided with the third level lifting column chamber of hi/local crank one side is fixedly connected with, be fixedly installed too an identical synchronizing wheel consistent with this synchronizing wheel height on the same position of the 3rd screw putter in the third level lifting column chamber of another lifting column that is symmetrical set, connect with Timing Belt between two synchronizing wheels.

Lifting column, seat plinth and lifting column desktop load trailing arm are the symmetrical both sides, desktop below of being located at, and lifting column has two, links to each other with desktop solid carriage by seat plinth carrier bar, post chamber connecting plate, Timing Belt cover between the two, and lifting column passes through the motor-driven lifting,

---the relevant position is provided with the first screw putter that adapts with first order post chamber in first order post chamber, the relevant position is provided with the second screw putter that adapts with post chamber, the second level in post chamber, the second level, and the relevant position is provided with the 3rd screw putter that adapts with third level post chamber in third level post chamber; The top of wherein said the 3rd screw putter is established a load bearing and is rotatably connected with top, third level post chamber, and the other end of this described the 3rd screw putter is by the internal thread engagement of its external screw thread and the second screw putter upper end; The other end of described the second screw putter is by the internal thread engagement of its external screw thread and the first screw putter upper end; The other end of described the first screw putter is the lower end, is fixed on the synchronizing wheel in lower end, lifting column first order post chamber and the seat plinth, and synchronizing wheel is arranged on the load crossbeam by the load bearing; The elevating movement that the second screw putter and the 3rd screw putter all can stretch state by the rotation of screw rod; And

---lifting column first order post chamber and seat plinth be vertical to be connected and to be symmetrical set present plinth connecting plate both sides, the load crossbeam of lower end, first order post chamber is provided with the load bearing, this two symmetrical load bearing respectively is nested in the identical synchronizing wheel, the synchronizing wheel top links to each other with one-level push rod lower end, Timing Belt passes through the continuous two symmetrical synchronizing wheels of a seat plinth connecting plate, is located on the plinth connecting plate and by two pulley tighteners with the motor of synchronizing wheel motor drum in-phase and Timing Belt are agreed with; Or this mode also can arrange above-mentioned motor with synchronizing wheel the both sides, front and back that present plinth is installed the lifting column position, synchromesh gear on the load bearing of the lower end, first order post chamber in the mounted motor one side seat plinth is made as the synchronizing wheel of double-layer integrally, when connecting the synchronizing wheel of lower end, left-right symmetry first order post chamber with a Timing Belt, connect the synchronizing wheel that is arranged on the interior rotor of first order post chamber rear side seat plinth with another Timing Belt; An axle bolt and slotting being located by connecting of chamber, both sides, upper end, third level lifting column chamber wall bolt are then established in third level push rod upper end.

The load crossbeam side that the seat plinth is installed in the position, lifting column chamber is provided with an electric conductor mounting bracket (this support also can adopt nonmetallic materials), and the electric conductor mounting bracket is provided with three electrode connection stake installing holes; The top in the third level lifting column chamber directly over this electric conductor mounting bracket is provided with a nonmetal spacer, on the nonmetal spacer and under electric conductor mounting bracket relative position be provided with equally three electrode connection stake installing holes; Telescopic electric conductor is made of telescopic antenna or spring, in the electrode connection stake installing hole on nonmetal spacer above two ends are separately fixed at and the electric conductor mounting bracket of below, be provided with insulation sleeve and insulation spacer in the electrode connection stake installing hole of lower end electric conductor metal mounting bracket; Telescopic electric conductor is provided with the telescopic insulating sheath outward, insulating sheath is inside and outside two-layer nestable alternately, the length of two insulation sleeves is about about 55% of electric conductor extension limit length, one end of ectonexine insulation sleeve is separately fixed on the electric conductor mounting bracket of below and on the nonmetal spacer of top, and nonmetal spacer drives and its relative another layer insulating sheath of insulating sheath lifting slippage of fixing during with the lifting column lifting; The importing of power supply and leading-out terminal are connected in the electrode stake at two ends up and down.

Described desktop stabilizing mechanism is made of flexible tooth bar group and synchronous gear wheels, and flexible tooth bar group is that the toothed rack bar shaped square column applying slip identical with another root thickness arranges, and the synchronous gear wheels are that circular shaft two ends respectively are fixedly installed an identical gear; Flexible tooth bar be about two groups arranged side by side, be symmetricly set on respectively the both sides of the single lifting column in desktop below, connect with the synchronous gear wheels between the two and dynamically control, the two ends of flexible tooth bar group are the engaging lug on Connection Block plinth and the table top with bearer respectively; Tooth bar and the bar shaped square column slip bond end of two flexible tooth bar groups are respectively established a pair of slippage spacer, two ends with the spacer of synchronous gear shaft installing hole are fixedly installed on respectively bar shaped square column one end both sides, two synchromesh gears are installed in the synchromesh gear installing hole and mesh respectively on the tooth bar that is arranged on two symmetries that overlap with the slip of bar shaped square column, and the lower end of two bar shaped square columns is hingedly fixed in a rearward position on plinth both sides; Another group is separately fixed at the both sides of tooth bar slip bond end with an end of the spacer of stay hook, the other end of this spacer then slides and hooks the bar shaped square column, the other end of the tooth bar of two symmetries is upper ends, is articulated in respectively on the engaging lug of table top with bearer of front side, single lifting column both sides desktops below; Two tooth bars and bar shaped square column can symmetrical synchronously level and smooth telescopic movings.

Rear side in single lifting column first order lifting column chamber is fixedly installed one or two vertical stability column of existing side by side, the lower end of stability column is fixed on the rear side of first order lifting column by a stability column lower carriage, the upper end is fixed on the upper end of first order lifting column by another stability column upper bracket, establish on the stability column one can be on vertical stability column the vertical stability column slippage of the hound cover (twin columns then use the fixing two-tube slippage cover of existing side by side) of slippage up and down, when desktop is down to when minimum, the slippage cover is in vertical stability column lower end, the lower end of two symmetrical hounds is connected in the left and right sides of slippage cover, the respectively angled left-right symmetry of the other end of hound connects on the hand desktop bottom bracket engaging lug, when lifting column rose, the slippage cover rose along vertical stability column slippage simultaneously with hound; Hound can be the single lifting column both sides under the desktop that are symmetricly set in, and also can adopt the V-arrangement group to be symmetricly set in lifting column both sides under the desktop.

Rear side is established a desk lamp, computer display establishing mounting bracket on top, lifting column third level post chamber, and the establishing support is fixed on third level post chamber upper end rear side, also can be installed on the encorbelmenting of desktop load trailing arm third level post chamber rear side; The establishing support is overlooked and is V-arrangement or Y shape, the V-arrangement of choosing or Y shape are pitched a terminal side and are provided with Desk lamp support inserting column installing hole, can peg graft for commercially available establishing desk lamp, opposite side is provided with the display/panel bracket mounting socket, the establishing support of (display screen will not design same table with telescopic display screen special stand according to different model before interface forms unified standard) two lifting column same table also can directly prolong encorbelmenting of both sides desktop load trailing arm third level post chamber rear side, and arrange and jack is installed thereon, consist of the left and right sides single-column arranged side by side establishing support of encorbelmenting.

The advantage of the technical solution adopted in the present invention is:

" desk with lowering or hoisting gear " it use height to regulate arbitrarily, and the use angle of top-adjustable, be convenient to the random reasoningly different posture of conversion of user and carry out work or study, thereby improve, ensure user's health status, raising work, learning efficiency and productivity sustainable development are had very important significance.The present invention has then carried out further developing innovation to existing technical scheme, make new scheme when having increased the use function, more reasonable reliably occupation mode is provided, the present invention also makes manufacturing process more simple and easy to do, more stable quality is reliable, reduced manufacturing cost, enlarged the use crowd, made the more household person occupation mode that secures good health of having ready conditions.

Below in conjunction with accompanying drawing the embodiment and advantages of the present invention are further explained.

Description of drawings

Accompanying drawing 1 is two lifting pillar overall structure schematic diagrames of the present invention's " desk with lowering or hoisting gear ";

Accompanying drawing 2 is the integral arrangement figure of the driven by shaking form of two lifting pillars of the present invention's " desk with lowering or hoisting gear ";

Accompanying drawing 3 is the integral arrangement figure of the type motor-driven of two lifting pillars of the present invention's " desk with lowering or hoisting gear "; (A) places structural configuration schematic diagram on the connecting plate of post chamber for motor among the figure; (B) place the structural configuration schematic diagram of lifting column rear side for motor;

Accompanying drawing 4 is the partial structurtes schematic diagram of the rack-and-pinion desktop dynamic balance mechanism of single lifting pillar of the present invention's " desk with lowering or hoisting gear ";

Accompanying drawing 5 is single lifting column driven by shaking form of the present invention's " desk with lowering or hoisting gear " and the overall structure schematic diagram of rack-and-pinion desktop dynamic balance mechanism;

Accompanying drawing 6 is the integral arrangement figure of the diagonal brace rod-type desktop dynamic balance mechanism same table of single lifting column driven by shaking form of the present invention's " desk with lowering or hoisting gear ";

Accompanying drawing 7 is the partial structurtes schematic diagram of the synchronizing wheel toothed belt transmission mode of single lifting column type motor-driven of the present invention's " desk with lowering or hoisting gear "

Accompanying drawing 8 is the partial structurtes schematic diagram of the turbine worm kind of drive of single lifting column type motor-driven of the present invention's " desk with lowering or hoisting gear ";

Accompanying drawing 9 is the concrete structure schematic diagram in the present invention's's " desk with lowering or hoisting gear " lifting column chamber, and a, b, c are the STRUCTURE DECOMPOSITION schematic diagram of the cross section of A, B, C among the figure; A ', b ', c ' are the cross sectional representation according to the section bar of the cavity of A, B, C characteristic customization and guide rail one;

Accompanying drawing 10 is the partial structurtes schematic diagram of the multi-form cavity of the present invention's's " desk with lowering or hoisting gear " post chamber, second level pulley cavity segment;

Accompanying drawing 11 is the driven by shaking form elevating mechanism of the present invention's's " desk with lowering or hoisting gear " single, double lifting column and the concrete fit structure schematic diagram of transmission mechanism;

Accompanying drawing 12 is the electrically conducting manner structural representation of the present invention's's " desk with lowering or hoisting gear " type motor-driven;

Label in the accompanying drawing is respectively:

D, the two lifting columns of expression, represent single lifting column, u/d, expression up/down side at S; S/d, expression list/even numbers;

D1/S1, desktop, the S1u/S1d desktop rises, state when falling, D2/S2, the seat plinth, D3/S3, lifting column, D4/S4, the desktop trailing arm, D5, post chamber connecting plate, S5, post chamber/drawout cubicle backboard, D6, seat plinth connecting plate, D7/S7, solid type/the glove of desktop/collecting frame, S8a, reduction tooth bar group and synchronous gear wheels (rack-and-pinion desktop dynamic balance mechanism), S8a1, tooth bar, S8a2, the bar shaped square column, S8a3, synchromesh gear, S8a4, the gear synchronous connecting rod, S8a5, with the spacer of synchromesh gear installing hole, S8a6, spacer with stay hook, S8b, Jackstay type desktop dynamic balance mechanism, S8b1a, simple root hound (omitting another root), S8b1b, shaped inclined strut bar group, S8b2a/S8b2b, (single/pair) the vertical stability column slippage of hound cover, S8b3a/S8b3b, list/pair vertical stability column, S8b4a/S8b4b, vertical stability column lower carriage, S8b5a/S8b5b, vertical stability column upper bracket, S8b6, on (hound) engaging lug, S9, the drawout cubicle mounting, S10, drawout cubicle, D (S) 11, desk lamp/computer display establishing support, S1u, state when desktop rises, S1d, state when desktop is fallen, 31, first order lifting column chamber, 31L/31R, the cavity of the staple shape that first order post chamber opening direction is relative, 312, the horizontal Beam of load, 314, the cavity connector of slide rail/staple shape that first order post chamber opening direction is relative, 3112s, single synchronizing wheel, 3112d, two synchronizing wheels, D3113d/S3113d, load bearing (underlying/standard), d3114a underlying Timing Belt, the rearmounted Timing Belt (descending) of d3114b is put Timing Belt, D3115/S3115 on the S3114u (single-column), the motor side synchronizing wheel, 3116, motor, D3117a/D3117b, pulley tightener, 3118, the manual switch conductive mechanism, 31181, the electric conductor mounting bracket, 31182, flexible electric conductor, 31183, nonmetal spacer, 31184u/31184d, laminated telescopic insulating sheath, 31185, power supply import and export terminal, 31186, insulation sleeve and insulation spacer, 31187, limit switch, S3119a, turbine, S3119a, scroll bar, 31110, the scroll bar bearing block, 32, lifting column chamber, the second level, 32L/32R, the cavity of the staple shape that post chamber, second level opening direction is relative, 324, the cavity connector of slide rail/staple shape that post chamber, second level opening direction is relative, 325, positioned pulley frame, 3251/3252,3261/3262,3271/3272, wheel shaft/pulley, 326a/326b, 326u, 326ua/326ub, / 326d, 326da/326db, on 326u '/326d ', the lower sheave chamber, 326u3/326u4,326d3/326d4, on (post chamber, the second level), lower group of pulley install recess/on, lower group of pulley chamber pulley installed recess, 327, external lever bullet bearing up pulley frame, 33, third level lifting column chamber, 33L/33R, the cavity of the staple shape that third level post chamber opening direction is relative, 334, the cavity connector of slide rail/staple shape that third level post chamber opening direction is relative, 3311/3312, wheel shaft/pulley, 331u, 331d/331b, (third level lifting column chamber) pulley is installed recess/positioning pulley recess, 311 is installed, first order push rod, 322, second level push rod, 333, third level push rod, 3331u, the load bearing (on/standard), 3332, the 3rd screw putter bevel gear, 3333, location bearing and support, 3334, on put synchronizing wheel, D3335, on put Timing Belt, D3336, on put the Timing Belt cover, 3337, the 3rd screw putter and third level lifting column chamber gim peg, 335, hand-operated drive mechanism, 3351, kinematic link telescopic bevel gear, 3355, (kinematic link telescopic) bearing block and crane span structure, 3352, cannulated sleeve with chute, 3352a, separate type cannulated sleeve solid cylinder part, 3352b, the separate type cannulated sleeve chute part of stretching, 3353a/3353b, pilot pin/kinematic link, 3354, crank, 336a/336b, kinematic link positioning bearing seat/kinematic link locating shaft bearing arm, 337, built-in lever bullet bearing up pulley frame, 3371/3372, wheel shaft/pulley, 338 cannulated sleeve locating supports.

The specific embodiment

The explanation of relevant embodiments of the invention is graphic with reference to what add, can be in order to the specific embodiment of implementing in order to illustration the present invention.And the direction term of mentioning in the present invention, such as " on ", D score, 'fornt', 'back', " left side ", " right side ", " side " etc., only be the direction with reference to annexed drawings.These direction terms are in order to explanation and understand the present invention, but not in order to limit the present invention.In following examples, in different figure, same section is to represent with same numeral.

Desk with lowering or hoisting gear provided by the invention has single lifting column and two two kinds of patterns of lifting column.Fig. 1 roughly illustrates the overall structure of desk, and Fig. 2 to Fig. 3 further shows the desk of two lifting column patterns, and Fig. 4 to Fig. 8 further shows the desk of single lifting column pattern, and Fig. 9 to Figure 12 shows the fit structure of local detail.

With reference to (a) among Fig. 1 figure (b) figure.Shown in (a) figure, desk comprises desktop D1, seat plinth D2, lifting column D3, desktop load trailing arm D4 and solid carriage D7; Lowering or hoisting gear comprises elevating mechanism and transmission mechanism; Elevating mechanism comprises one or two lifting column D3, has post chamber connecting plate D5 between two lifting column D3, and also have a plinth connecting plate D6 between the seat plinth D2 this moment.

Shown in (b) figure among Fig. 1, each lifting column D3 comprises mutually nested first order post chamber 31, post chamber, the second level 32 and third level post chamber 33,

post chamber

31,32 and 33 cross section are rectangle, and rectangle post chamber is connected or butt welding forms with riveted joint, screw with being connected by the lifting pulley guide rail 314 in the chamber, 324 by cavity 31L/31R, the 32L/32R of the relative staple shape of two opening directions, 33L/33R respectively.Lower end in the first order post chamber 31 is provided with load crossbeam 312.Be respectively equipped with on two walls of post chamber, the second level 32 Lower Halves, one side, lower two parts pulley is installed recess 326u3 and 326d3, its middle and upper part divides pulley installation recess 326u3 to be provided with at least one group, a pulley chamber 326u/326d is fixed respectively in each recess 326u3/326d3 outside, pulley chamber cavity can become single face (as: 326a/326ua/326da) two sides (as: 326u/326d) or three (as: 326u '/326d ') sealing or semiclosed rectangular case according to the sheet metal thickness cutting and bending, by welding, screw or riveted joint are fixed on 32 top sheave recess 326u3/326d3 relevant positions, post chamber, the second level, or also can pass through machine cuts machine-shaping (such as 326b/326ub/326db) afterwards with screw by thicker material, riveted joint or welding fix on 32 top sheave recess 326u3/326d3 relevant positions, post chamber, the second level week, cavity can be that component is opened up and down, such as Figure 10 (B), also can organize up and down one, such as Figure 10 (A); Pulley chamber 326u/326d (comprising 326a/326b, 326ua/326ub, 326da/326db) cavity also is provided with the pulley consistent with post chamber upper notch with post chamber upper notch 326u3/326d3 opposite position recess 326u4/326d4 is installed; And be provided with positioned pulley frame 325 and external lever bullet bearing up pulley frame 327 in the opposite side position, post chamber relative with this post chamber assembly pulley recess 326u3.On two walls of third level post chamber 33 Lower Halves, one side, also be respectively equipped with upper and lower two parts pulley recess 331u and 331d are installed, its middle and upper part divides 331u to be provided with at least one group of pulley installation recess, the post chamber opposite side two wall positions relative at this assembly pulley recess are provided with positioning pulley recess 331b, and are provided with built-in lever bullet bearing up pulley frame 337 in the post chamber below this positioning pulley recess 331b; Between each

post chamber

31,32 and 33 with

pulley

3312,3372,3252 and 3262 and cavity 31L/31R, the 32L/32R of staple shape, the slide rail 314,324 in the 33L/33R, with 334 be slidingly connected,

pulley

3312,3372,3252 and 3262 is arranged on the recess or wheel carrier in above-mentioned post chamber by

wheel shaft

3251,3261,3271,3311 and 3371 respectively, wherein second level post chamber 32 is arranged in the first order post chamber 31 and does lifting based on first order post chamber 31 and slide, and third level post chamber 33 is arranged in the post chamber, the second level 32 and does lifting based on post chamber, the second level 32 and slide; Opposite side is provided with positioned pulley frame 325, pulley 3252 and external lever bullet bearing up pulley frame 327 and bullet bearing up pulley 3272 accordingly on post chamber, the second level wall between first order post chamber 31 and the post chamber, the second level 32; Also be provided with accordingly positioning pulley 3312 in the positioning pulley recess 331b on the third level post chamber wall opposite side between post chamber, the second level 32 and third level post chamber 33 and thereunder be provided with built-in lever bullet bearing up pulley frame 337 and bullet bearing up pulley 3372.

With reference to Fig. 5.When above-mentioned desk with lowering or hoisting gear has a lifting column S3, when being single lifting column lifting pattern, seat plinth S2 and desktop load trailing arm S4 also are independent, namely all only have one.This moment, desk can pass through driven by shaking or motor-driven lifting, and described lifting column S3 comprises:

---be provided with the first screw putter 311 that adapts with first order post chamber in 31 interior relevant positions, first order post chamber, be provided with the second screw putter 322 that adapts with post chamber, the second level in 32 interior relevant positions, post chamber, the second level, and be provided with the 3rd screw putter 333 that adapts with third level post chamber in 33 interior relevant positions, third level post chamber; The top of wherein said the 3rd screw putter 333 is established a load bearing 3331u and is rotatably connected with 33 tops, third level post chamber, and the other end of this described the 3rd screw putter 333 is by the internal thread engagement of its external screw thread and the second screw putter 322 upper ends; The other end of described the second screw putter 322 is by the internal thread engagement of its external screw thread and the first screw putter 311 upper ends; The lower end of described the first screw putter 311 is fixed on the load crossbeam 312 of 31 bottoms, first order post chamber; The elevating movement that the second screw putter 322 and the 3rd screw putter 333 all can stretch state by the rotation of screw rod; And

---below the load bearing 3331u on the 3rd screw putter 333 tops, establish a bevel gear 3332 that is fixedly connected with the 3rd screw putter 333; Can establish a screw rod location bearing 3333 for 3332 times at the 3rd screw putter bevel gear, this screw rod location bearing is fixedly installed on the 33 chamber walls of third level post chamber by a support;

When with the driven by shaking lifting:

---in lifting column desktop load trailing arm S4 or thereunder be provided with hand-operated lifting handlebar mechanism 335, this mechanism is made of the bearing block 3355 of crank 3354, kinematic link 3353a, kinematic link axle bolt 3353b, kinematic link telescopic 3352 and fixed conveyor connecting rod telescopic; Bearing block 3355 is fixedly connected on two walls in third level post chamber 33 by a crane span structure, kinematic link telescopic 3,352 one ends are the cannulated sleeve that both sides have two chutes, the other end is relatively thin solid cylinder, the solid cylinder of kinematic link telescopic 3352 is fixedly connected with a bevel gear 3351 after passing bearing block 3355 upper bearing (metal) endoporus, 3332 one-tenth an angle of 90 degrees engagements of 3351 of this bevel gears and the 3rd screw putter bevel gear, (this kinematic link telescopic 3352 is removable telescopic 3352a and two detachable parts of solid cylinder 3352b that are divided into chute also, can tie by joint tongue or transmission between them and connect transmission.) end kinematic link 3353a that is provided with a transmission pilot pin 3353b is arranged in the kinematic link telescopic 3352, this kinematic link 3353a is can be along transversal stretching slippage in the chute length distance in kinematic link telescopic 3352 cannulated sleeves under the restriction of transmission pilot pin 3353b, but telescopic 3352 can only be under the drive of kinematic link pilot pin 3353b synchronous rotary; The other end of kinematic link 3353a is provided with crank 3354, and is fixed in the desktop load trailing arm S4 or the below by a bearing block 336a or bearing fixed arm 336b;

When with the motor-driven lifting:

Referring to Fig. 8 (A) (B) (C), 31 interior lower end load crossbeams 312 are established a load bearing S3113d in first order post chamber, this bearing is nested in the turbine S3119a, this turbine top is provided with the interface that joins with first order push rod 311 lower ends, on the chamber wall of 31 both sides, first order post chamber, respectively establish a load bearing block 31110, scroll bar S3119b and turbine S3119a engagement also are arranged on this diaxon bearing 31110, and the end of scroll bar S3119b links to each other with the rotor of the motor 3116 that is arranged on 31 outsides, first order post chamber;

Or also this mode can be arranged on 33 upper ends, third level post chamber, referring to Fig. 8 (D) (E) (F), a turbine S3119a who is fixedly connected with the 3rd screw putter 333 is established in bevel gear 3332 positions below the load bearing 3331u on the 3rd screw putter 333 tops, on the wall of chamber, 33 both sides, third level post chamber, respectively establish a bearing block 31110 with bearing, scroll bar S3119b and turbine S3119a engagement also are located on this diaxon bearing 31110, the end of scroll bar S3119b links to each other with the rotor of third level post chamber 33 motor 3116 outward, and the lower end of the first screw putter 311 then directly is fixed on the load crossbeam 312.

The another way of motor-driven lifting:

Lifting column can be realized lifting by motor-driven synchronizing wheel Timing Belt, and this transmission mechanism has two kinds of identical set-up modes of Essential Action:

Referring to Fig. 7 (D) (E) (F), when this transmission mechanism was located at 33 upper end, third level post chamber, the first screw putter 311 lower ends were fixed on the load crossbeam 312 of 31 interior lower ends, first order post chamber; And below the load bearing 3331u on the 3rd screw putter 333 tops, be fixedly installed a synchronizing wheel 3334; On the chamber wall of third level post chamber 33 1 sides, offer a punch holes with synchronizing wheel 3334 corresponding height positions, on put Timing Belt S3114u and pass this hole the epitrochanterian driving synchronizing wheel S3115 of the 3rd screw putter synchronizing wheel 3334 with the motor 3116 that is arranged on third level post chamber 33 1 sides outside linked to each other;

Referring to Fig. 7 (A) (B) (C) when this transmission mechanism was located at 31 lower end, first order post chamber, the 3rd screw putter 333 tops were inserted itself and third level post chamber 33 upper end bolts by an axle bolt 3337 (referring to Fig. 3) and are fixedly connected with; Establish a load bearing S3113d at the load crossbeam 312 of 31 interior lower ends, first order post chamber, this load bearing is nested in the synchronizing wheel 3112d, and this synchronizing wheel top is fixedly connected with the first screw putter 311 lower ends; Offer a punch holes with synchronizing wheel 3112d corresponding height position on the chamber wall of first order post chamber 31 1 sides, Timing Belt S3114b passes this hole the first screw putter synchronizing wheel 3112d is linked to each other with driving synchronizing wheel S3115 on the rotor that is arranged on first order post chamber 31 1 sides outside;

Fig. 2 to Fig. 3 further shows the desk of two lifting column patterns.Shown in A figure among Fig. 2, the desk with lowering or hoisting gear of two lifting column patterns, its lifting column, seat plinth and lifting column desktop load trailing arm are the symmetrical both sides, desktop below of being located at, lifting column has two, links to each other with desktop solid carriage with the Timing Belt cover by seat plinth carrier bar, post chamber connecting plate between the two.

With reference to the B among Fig. 2 and C figure, the desk of two lifting column patterns of driven by shaking lifting has:

---be provided with the first screw putter 311 that adapts with first order post chamber 31 in 31 interior relevant positions, first order post chamber, be provided with the second screw putter 322 that adapts with post chamber, the second level 32 in 32 interior relevant positions, post chamber, the second level, and be provided with the 3rd screw putter 333 that adapts with third level post chamber 33 in 33 interior relevant positions, third level post chamber; The top of wherein said the 3rd screw putter 333 is established a load bearing 3331u and is rotatably connected with 33 tops, third level post chamber, and the other end of this described the 3rd screw putter 333 is by the internal thread engagement of its external screw thread and the second screw putter 322 upper ends; The other end of described the second screw putter 322 is by the internal thread engagement of its external screw thread and the first screw putter 311 upper ends; Fix in the lower end week of described the first screw putter 311 on the load crossbeam 312 of 31 bottoms, first order post chamber; The elevating movement that the second screw putter 322 and the 3rd screw putter 333 all can stretch state by the rotation of screw rod;

---below the load bearing 3331u on the 3rd screw putter 333 tops of hand-operated lifting crank 3,354 one side lifting columns, establish a bevel gear 3332 that is fixedly connected with the 3rd screw putter 333; Can establish a screw rod location bearing 3333 for 3332 times at the 3rd screw putter 333 bevel gears, this screw rod location bearing 3333 is fixedly installed on the 33 chamber walls of third level post chamber by a support;

---in lifting column desktop load trailing arm D4 or thereunder be provided with hand-operated lifting handlebar mechanism 335, this mechanism has the bearing block 3355 of crank 3354, kinematic link 3353a, kinematic link telescopic 3352 and fixed conveyor connecting rod telescopic 3352 to consist of; Bearing block 3355 is fixed on two walls in third level post chamber 33 by a crane span structure, kinematic link telescopic 3,352 one ends are the cannulated sleeve 3352a that both sides have two chutes, the other end is relatively thin solid cylinder 3352b, the solid cylinder 3352b of kinematic link telescopic 3352a is fixedly connected with a bevel gear 3351 after passing bearing block 3355 upper bearing (metal) endoporus, 3332 one-tenth an angle of 90 degrees engagements of 3351 of this bevel gears and the 3rd screw putter bevel gear; The kinematic link 3353a that one end is provided with a transmission pilot pin 3353b is arranged in the kinematic link telescopic 3352, this kinematic link 3353a is can be along transversal stretching slippage in the chute length distance in cannulated sleeve under the restriction of transmission pilot pin 3353b, but kinematic link telescopic 3352 can only be under the drive of kinematic link pilot pin 3353b synchronous rotary; The other end of kinematic link 3353a is provided with crank 3354, and by a bearing block 336a or bearing fixed arm 336b be fixed in the desktop load trailing arm D4 or below; And

---establish a synchronizing wheel 3334 that is fixedly connected with the 3rd screw putter 333 above or below the bevel gear 3332 that the 3rd screw putter 333 in the third level lifting column chamber 33 that is provided with hi/local crank 3,354 one side lifting columns is fixedly connected with, be fixedly installed too on the same position of the 3rd screw putter 333 in another third level lifting column chamber 33 that is symmetrical set one with highly consistent identical synchronizing wheel 3334, two synchronizing wheels 3334 of this synchronizing wheel 3334 between connect with Timing Belt D3335.

With reference to Fig. 3, except Manual elevator mechanism, other running part was basic identical when the desk of two lifting pillars adopted the motor-driven lifting:

---such as Fig. 3 (A) (C) (D), be provided with the first screw putter 311 that adapts with first order post chamber 31 in 31 interior relevant positions, first order post chamber, be provided with the second screw putter 322 that adapts with post chamber, the second level 32 in 32 interior relevant positions, post chamber, the second level, and be provided with the 3rd screw putter 333 that adapts with third level post chamber 33 in 33 interior relevant positions, third level post chamber; The top bolt of wherein said the 3rd screw putter 333 is inserted a fixed axis bolt 3337 and is fixedly connected with 33 tops, third level post chamber, and the other end of this described the 3rd screw putter 333 is by the internal thread engagement of its external screw thread and the second screw putter 322 upper ends; The other end of described the second screw putter 322 is by the internal thread engagement of its external screw thread and the first screw putter 311 upper ends; The other end of described the first screw putter 311 (lower end) is fixed on the interior synchronizing wheel 3112s of lifting column first order post chamber 31 lower end seat plinth, and synchronizing wheel 3112s is arranged on the load crossbeam 312 by load bearings D 3113d; The elevating movement that the second screw putter 322 and the 3rd screw putter 333 all can stretch state by the rotation of screw rod; And

---(C) (D) lifting column first order post chamber 31 and seat plinth D2 are vertical is connected and is symmetrical set present plinth connecting plate D6 both sides such as Fig. 3 (A), the load crossbeam 312 of 31 lower ends, first order post chamber is provided with load bearings D 3113d, this two symmetrical load bearings D 3113d respectively is nested in the identical synchronizing wheel 3112s, synchronizing wheel 3112s top links to each other with one-level push rod 311 lower ends, Timing Belt d3114a is located at a plinth connecting plate D6 with the motor 3116 of synchronizing wheel D3115 and upward and by two pulley tightener D3117a motor drum in-phase D3115 and Timing Belt d3114a is agreed with through the continuous two symmetrical synchronizing wheel 3112s of seat plinth connecting plate D6; Or this mode also can arrange above-mentioned motor 3116 with synchronizing wheel D3115 the both sides, front and back that present plinth D2 installs first order lifting column 31 positions, synchromesh gear 3112d on the load bearings D 3113d of 311 lower ends, first order post chamber in the mounted motor 3,116 one side seat plinth D2 is made as the synchronizing wheel of double-layer integrally, when connecting the synchronizing wheel 3112s of 31 lower ends, left-right symmetry first order post chamber with a Timing Belt d3114a, be arranged on motor 3116 epitrochanterian synchronizing wheel D3115 in the 31 rear side seat plinth D2 of first order post chamber with another Timing Belt d3114b connection; Third level push rod 333 upper ends are then established an axle bolt 3337 and are located by connecting with chamber, both sides, 33 upper end, third level post chamber wall bolt is slotting.

With reference to Figure 12, the desk of single, double lifting column electric up-down pattern adopts the hand switch pattern also to have built-in telescopic safety conductive mode.Load crossbeam 312 sides that seat plinth D2 installs in the position, lifting column chamber are provided with an electric conductor mounting bracket 31181 (this support also can adopt nonmetallic materials), and this electric conductor mounting bracket is provided with three electrode connection stake installing holes; The top in the third level lifting column chamber 33 directly over this electric conductor mounting bracket 31181 is provided with a nonmetal spacer 31183, on the nonmetal spacer 31183 and under electric conductor mounting bracket 31181 relative positions be provided with equally three electrode connection stake installing holes; Telescopic electric conductor 31182 is made of telescopic antenna or spring, in the electrode connection stake installing hole on nonmetal spacer 31183 above two ends are separately fixed at and the electric conductor mounting bracket 31181 of below, be provided with insulation sleeve and insulation spacer 31186 in the electrode connection stake installing hole of lower end electric conductor metal mounting bracket 31181 during installation; The telescopic electric conductor 31182 outer laminated telescopic insulating sheath 31184u/31184d that are provided with, laminated telescopic insulating sheath 31184u/31184d is inside and outside two-layer nestable alternately, the length of two insulation sleeves is about about 55% of electric conductor 31182 extension limit length, on the electric conductor mounting bracket 31181 below the end of ectonexine insulation sleeve 31184u/31184d is separately fixed at and on the nonmetal spacer 31183 of top, nonmetal spacer 31183 drives with its fixing relative another layer insulating sheath of insulating sheath 31184u 31184d when rising with third level post chamber 33 and does in opposite directions lifting slippage; The importing of power supply and leading-out terminal 31185 are connected in the electrode stake at two ends up and down.

With reference to Fig. 4, Fig. 5 and Fig. 6, the present invention's " single-column same table " also is provided with rack-and-pinion desktop dynamic balance mechanism, this mechanism is made of flexible tooth bar group and synchronous gear wheels S8a, flexible tooth bar group is that the toothed rack S8a1 bar shaped square column S8a2 applying slip identical with another root thickness arranges, and the synchronous gear wheels are that circular shaft S8a4 two ends respectively are fixedly installed an identical gear S8a3; Flexible tooth bar group be about two groups arranged side by side, be symmetricly set on respectively the both sides of the single lifting column S3 in desktop below, dynamically connect control with the synchronous gear wheels between the two, the two ends of flexible tooth bar group are the engaging lug S8b6 on Connection Block plinth S2 and the table top with bearer respectively; Tooth bar S8a1 and the bar shaped square column S8a2 slip bond end of two flexible tooth bar groups are respectively established a pair of slippage spacer S8a5/S8a6, two ends with the spacer S8a5 of synchronous gear shaft installing hole are fixedly installed on respectively bar shaped square column S8a2 one end both sides, two synchromesh gears (two ends of axle S8a4) be installed in the synchromesh gear installing hole of spacer S8a5 and respectively engagement be arranged on bar shaped square column S8a2 and slide on the tooth bar S8a1 of two symmetries of overlap joint, the lower end of two bar shaped square column S8a2 is hingedly fixed in a rearward position on plinth both sides; Another group is separately fixed at the both sides of tooth bar S8a1 slip bond end with the end of the spacer S8a6 of stay hook, the other end of this spacer S8a6 then slides and hooks bar shaped square column S8a2, and the other end (upper end) of the tooth bar S8a1 of two symmetries is articulated in respectively on the engaging lug S8b6 of table top with bearer of front side, single lifting column S3 both sides desktops below; Two tooth bar S8a1 and bar shaped square column S8a2 can symmetrical synchronously level and smooth telescopic movings.

With reference to Fig. 6, " single-column same table " also is provided with diagonal brace rod-type desktop dynamic balance mechanism, rear side in single lifting column first order lifting column chamber 31 is fixedly installed the vertical stability column that (S8b3a) or two (S8b3b) exists side by side, the lower end of this stability column is fixed on the rear side of first order lifting column 31 by a stability column lower carriage S8b4a/S8b4b, the upper end is fixed on the upper end of first order lifting column 31 by another stability column upper bracket S8b5a/S8b5b, establish on the stability column S8b3a/S8b3b one can be on vertical stability column S8b3a/S8b3b the vertical stability column slippage cover of the hound of slippage S8b2a (twin columns then use the vertical stability column slippage cover of the fixing two-tube hound of existing side by side S8b2b) up and down, when desktop is down to when minimum, slippage cover S8b2a/S8b2b is in vertical stability column S8b3a/S8b3b lower end, the lower end of two symmetrical hound S8b1a/S8b1b is connected in the left and right sides of the vertical stability column slippage cover of hound S8b2a/S8b2b, the other end of this hound respectively angled left-right symmetry is connected on the desktop S1u bottom bracket engaging lug S8b6, and when lifting column S3 rose, the vertical stability column slippage cover of hound S8b2a/S8b2b rose along vertical stability column S8b3a/S8b3b slippage simultaneously with hound S8b1a/S8b1b; Hound can be, and single (S8b1a) is symmetricly set in lifting column S3 both sides under the desktop S1u, also can adopt V-arrangement group (S8b1b) to be symmetricly set in lifting column S3 both sides under the desktop S1u.

Referring to Fig. 2,5,6,11 described desks with single (two) lifting column, also set up relatively less important establishing function, 33 top rear sides are established a desk lamp, computer display establishing mounting bracket D (S) 11 in lifting column third level post chamber, establishing support D (S) 11 is fixed on third level post chamber 33 upper end rear sides, also can be installed on the encorbelmenting of desktop load trailing arm D (S) 4 third level post chambeies 33 rear sides; The establishing support is overlooked and is V-arrangement or Y shape, the V-arrangement of choosing or Y shape are pitched a terminal side and are provided with Desk lamp support inserting column installing hole, can peg graft for commercially available establishing desk lamp, opposite side is provided with the display/panel bracket mounting socket, display screen is not before interface forms unified standard, will be according to its different model otherwise designed same table with scalable display screen special stand, the establishing support D (S) 11 of two lifting column same table also can directly prolong the D that encorbelments (S) 4 of both sides desktop load trailing arm D (S) 4 third level post chambeies 33 rear sides, and arrange and jack is installed thereon, consist of the left and right sides single-column arranged side by side establishing support of encorbelmenting and see D (S) 11b of Figure 11.

In addition, the application's desk also can have desktop angle adjusting device, with reference to D12 among Fig. 3, be used for regulating inclination angle of desktop, it is embodied in the front and continued patent (200710038315) description, those skilled in the art fully can be with reference to front and continued patent or other existing techniques in realizing, and therefore it will not go into details.

Below only be concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.In addition to the implementation, the present invention can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the present invention's scope required for protection.

Claims

1. desk with lowering or hoisting gear is characterized in that: described desk comprises desktop, seat plinth, lowering or hoisting gear, desktop load trailing arm and solid carriage; Lowering or hoisting gear comprises elevating mechanism and transmission mechanism; Elevating mechanism comprises mutually nested first order post chamber, post chamber, the second level and third level post chamber, the cross section in post chamber is rectangle, this rectangle post chamber by the cavity of the relative staple shape of two opening directions by the lifting pulley guide rail in the chamber with riveted joint, screw connection, butt welding or be made of one piece; Lower end in first order post chamber is provided with the load crossbeam; Be respectively equipped with on two walls of post chamber, second level Lower Half one side, lower two parts pulley is installed recess, its middle and upper part divides pulley installation recess to be provided with at least one group, a pulley chamber is fixed respectively in each recess outside, pulley chamber cavity becomes single face according to the sheet metal thickness cutting and bending, the semiclosed rectangular case that two sides or three side sealing close, pulley chamber cavity is by welding, screw or rivet are fixed on top sheave recess relevant position, post chamber, the second level, or also can thicker material by after the machine cuts machine-shaping with screw, rivet or be weldingly fixed in top sheave recess relevant position, post chamber, the second level, cavity up and down component is opened, and also can organize up and down one; Pulley chamber, post chamber cavity also is provided with the pulley consistent with post chamber upper notch with post chamber upper notch opposite position recess is installed; And be provided with positioned pulley frame and external lever bullet bearing up pulley frame in the opposite side position, post chamber relative with this post chamber assembly pulley recess; On two walls of third level post chamber Lower Half one side, also be respectively equipped with upper and lower two parts pulley recess is installed, its middle and upper part is divided and is provided with at least one group of pulley recess is installed, the post chamber opposite side two wall positions relative at this assembly pulley recess are provided with the positioning pulley recess, and are provided with built-in lever bullet bearing up pulley frame in the post chamber below this positioning pulley recess; Be slidingly connected with pulley and slide rail between each post chamber, pulley is arranged on the recess or wheel carrier in above-mentioned post chamber by wheel shaft, wherein post chamber in the second level is arranged in the first order post chamber and does lifting based on first order post chamber and slide, and third level post chamber is arranged in the post chamber, the second level and does lifting based on post chamber, the second level and slide; Opposite side is provided with positioned pulley frame, pulley and external lever bullet bearing up pulley frame and bullet bearing up pulley accordingly on post chamber, the second level wall between first order post chamber and the post chamber, the second level; Also be provided with accordingly positioning pulley in the positioning pulley recess on the third level post chamber wall opposite side between post chamber, the second level and third level post chamber, and below this positioning pulley recess, also be provided with built-in lever bullet bearing up pulley frame and play bearing up pulley.

2. the desk with lowering or hoisting gear according to claim 1 is characterized in that: lifting column, seat plinth and the desktop load trailing arm of described desktop below is independent, and lifting column only has one, and lifting column is by the driven by shaking lifting,

---the relevant position is provided with the first screw putter that adapts with first order post chamber in first order post chamber, the relevant position is provided with the second screw putter that adapts with post chamber, the second level in post chamber, the second level, and the relevant position is provided with the 3rd screw putter that adapts with third level post chamber in third level post chamber; The top of wherein said the 3rd screw putter is established a load bearing and is rotatably connected with top, third level post chamber, and the other end of this described the 3rd screw putter is by the internal thread engagement of its external screw thread and the second screw putter upper end; The other end of described the second screw putter is by the internal thread engagement of its external screw thread and the first screw putter upper end; The lower end of described the first screw putter is fixed on the load crossbeam of bottom, first order post chamber; The elevating movement that the second screw putter and the 3rd screw putter all stretch state by the rotation of screw rod; And

---below the load bearing on the 3rd screw putter top, establish a bevel gear that is fixedly connected with the 3rd screw putter; Establish a screw rod location bearing below the 3rd screw putter bevel gear, this screw rod location bearing is fixedly installed on the wall of third level post chamber by a support;

---in lifting column desktop load trailing arm or thereunder be provided with the hand-operated lifting handlebar mechanism, this mechanism is made of the bearing block of crank, kinematic link, kinematic link telescopic and fixed conveyor connecting rod telescopic; Bearing block is fixedly connected on two walls in third level post chamber by a crane span structure, kinematic link telescopic one end is the cannulated sleeve that both sides have two chutes, the other end is relatively thin solid cylinder, this kinematic link telescopic and its solid cylinder are one-body molded or also can be two detachable parts, when being two detachable parts, to tie by joint tongue or transmission to connect transmission, the solid cylinder of kinematic link telescopic is fixedly connected with a bevel gear after passing bearing block upper bearing (metal) endoporus, and this bevel gear then becomes an angle of 90 degrees engagement with the 3rd screw putter bevel gear; The kinematic link that one end is provided with a transmission pilot pin is arranged in the kinematic link telescopic, this kinematic link is can be along transversal stretching slippage in the chute length distance in cannulated sleeve under the restriction of transmission pilot pin, but telescopic can only be under the drive of kinematic link pilot pin synchronous rotary; The other end of kinematic link is provided with crank, and is fixed in the desktop load trailing arm or the below by an axle sleeve, bearing block or bearing fixed arm.

3. the desk with lowering or hoisting gear according to claim 1 and 2, it is characterized in that: lifting column, seat plinth and the desktop load trailing arm of described desktop below are independent, lifting column only has one, it is characterized in that, lifting column is realized lifting by the motor driving scroll turbine, and this transmission mechanism has two kinds of set-up modes that Essential Action is identical:

---when this transmission mechanism was located at upper end, third level post chamber, the first screw putter lower end was fixed on the load crossbeam of lower end in the first order post chamber; And below the load bearing on the 3rd screw putter top, be fixedly installed a turbine; Respectively establish a bearing block with bearing with turbine corresponding height position on the chamber wall of both sides, third level post chamber, scroll bar and turbine engagement also are arranged on this diaxon bearing, and an end of scroll bar links to each other with the rotor of the motor that is arranged on the outside, third level post chamber;

---when this transmission mechanism was located at lower end, first order post chamber, the 3rd screw putter top was inserted it by an axle bolt and is fixedly connected with upper end, third level post chamber bolt; The load crossbeam of lower end is established a load bearing in first order post chamber, and this bearing is nested in the turbine, and the turbine top is fixedly connected with the first screw putter lower end; Respectively establish a bearing block with bearing with turbine corresponding height position on the chamber wall of both sides, first order post chamber, scroll bar and turbine engagement also are arranged on this diaxon bearing, and an end of scroll bar links to each other with the rotor of the motor that is arranged on the outside, first order post chamber.

4. the desk with lowering or hoisting gear according to claim 1 and 2, it is characterized in that, adopt synchronizing wheel toothed belt transmission mode, lifting column is realized lifting by motor-driven synchronizing wheel Timing Belt, and this transmission mechanism has two kinds of set-up modes that Essential Action is identical:

---when this transmission mechanism was located at upper end, third level post chamber, the first screw putter lower end was fixed on the load crossbeam of lower end in the first order post chamber; And below the load bearing on the 3rd screw putter top, be fixedly installed a synchronizing wheel; Offer a punch holes with synchronizing wheel corresponding height position on the chamber wall of third level post chamber one side, Timing Belt passes this hole the 3rd screw putter synchronizing wheel is linked to each other with driving synchronizing wheel on the rotor that is arranged on third level post chamber one side outside;

---when this transmission mechanism was located at lower end, first order post chamber, the 3rd screw putter top was inserted it by an axle bolt and is fixedly connected with upper end, third level post chamber bolt; The load crossbeam of lower end is established a load bearing in first order post chamber, and this bearing is nested in the synchronizing wheel, and the synchronizing wheel top is fixedly connected with the first screw putter lower end; Offer a punch holes with synchronizing wheel corresponding height position on the chamber wall of first order post chamber one side, Timing Belt passes this hole the first screw putter synchronizing wheel is linked to each other with driving synchronizing wheel on the rotor that is arranged on first order post chamber one side outside.

5. the desk with lowering or hoisting gear according to claim 1, it is characterized in that, its lifting column, seat plinth and lifting column desktop load trailing arm are left-right symmetry and are located at both sides, desktop below, lifting column has two, link to each other with desktop solid carriage by seat plinth carrier bar, post chamber connecting plate, Timing Belt cover between the two, and with the driven by shaking lifting, simultaneously

---the relevant position is provided with the first screw putter that adapts with first order post chamber in first order post chamber, the relevant position is provided with the second screw putter that adapts with post chamber, the second level in post chamber, the second level, and the relevant position is provided with the 3rd screw putter that adapts with third level post chamber in third level post chamber; The top of wherein said the 3rd screw putter is established a load bearing and is rotatably connected with top, third level post chamber, and the other end of this described the 3rd screw putter is by the internal thread engagement of its external screw thread and the second screw putter upper end; The other end of described the second screw putter is by the internal thread engagement of its external screw thread and the first screw putter upper end; The other end of described the first screw putter is the lower end, is fixed on the load crossbeam of bottom, first order post chamber; The elevating movement that the second screw putter and the 3rd screw putter all stretch state by the rotation of screw rod;

---establish a bevel gear that is fixedly connected with the 3rd screw putter below the load bearing on the 3rd screw putter top in the lifting column of hand-operated lifting crank one side; Establish a screw rod location bearing below the 3rd screw putter bevel gear, this screw rod location bearing is fixedly installed on the wall of third level post chamber by a support;

---establish a synchronizing wheel that is fixedly connected with the 3rd screw putter above or below the bevel gear that the 3rd screw putter in being provided with the third level lifting column chamber of hi/local crank one side is fixedly connected with, be fixedly installed too an identical synchronizing wheel consistent with this synchromesh gear height on the same position of the 3rd screw putter in the third level lifting column chamber of another lifting column that is symmetrical set, connect with Timing Belt between two synchronizing wheels.

6. the desk with lowering or hoisting gear according to claim 1, it is characterized in that: lifting column, seat plinth and lifting column desktop load trailing arm are the symmetrical both sides, desktop below of being located at, lifting column has two, link to each other with desktop solid carriage by seat plinth carrier bar, post chamber connecting plate, Timing Belt cover between the two, lifting column passes through the motor-driven lifting, and

---the relevant position is provided with the first screw putter that adapts with first order post chamber in first order post chamber, the relevant position is provided with the second screw putter that adapts with post chamber, the second level in post chamber, the second level, and the relevant position is provided with the 3rd screw putter that adapts with third level post chamber in third level post chamber; The top of wherein said the 3rd screw putter is established a load bearing and is rotatably connected with top, third level post chamber, and the other end of this described the 3rd screw putter is by the internal thread engagement of its external screw thread and the second screw putter upper end; The other end of described the second screw putter is by the internal thread engagement of its external screw thread and the first screw putter upper end; The other end of described the first screw putter is the lower end, is fixed on the synchronizing wheel in lower end, lifting column first order post chamber and the seat plinth, and synchronizing wheel is arranged on the load crossbeam by the load bearing; The elevating movement that the second screw putter and the 3rd screw putter all stretch state by the rotation of screw rod; And

---lifting column first order post chamber and seat plinth be vertical to be connected and to be symmetrical set present plinth connecting plate both sides, the load crossbeam of lower end, first order post chamber is provided with the load bearing, this two symmetrical load bearing respectively is nested in the identical synchronizing wheel, the synchronizing wheel top links to each other with one-level push rod lower end, Timing Belt is through the continuous two symmetrical synchronizing wheels of seat plinth connecting plate, be located on the plinth connecting plate and by two pulley tighteners with the motor of synchronizing wheel motor drum in-phase and Timing Belt are agreed with, or also this motor with synchronizing wheel can be arranged the both sides, front and back that present plinth is installed the lifting column position, synchromesh gear on the load bearing of the lower end, first order post chamber in the mounted motor one side seat plinth is made as the synchronizing wheel of double-layer integrally, when connecting the synchronizing wheel of lower end, left-right symmetry first order post chamber with a Timing Belt, connect the synchronizing wheel that is arranged on the interior rotor of first order post chamber rear side seat plinth with another Timing Belt; An axle bolt and slotting being located by connecting of chamber, both sides, upper end, third level lifting column chamber wall bolt are then established in third level push rod upper end.

7. the desk with lowering or hoisting gear according to claim 3 is characterized in that: the seat plinth is provided with an electric conductor mounting bracket by load crossbeam in the position, lifting column chamber is installed, and the electric conductor mounting bracket is provided with three electrode connection stake installing holes; The top in the third level lifting column chamber directly over this electric conductor mounting bracket is provided with a nonmetal spacer, on the nonmetal spacer and under electric conductor mounting bracket relative position be provided with equally three electrode connection stake installing holes; Telescopic electric conductor is made of telescopic antenna or spring, in the electrode connection stake installing hole on nonmetal spacer above two ends are separately fixed at and the electric conductor mounting bracket of below, be provided with insulation sleeve and insulation spacer in the electrode connection stake installing hole of lower end electric conductor metal mounting bracket; Telescopic electric conductor is provided with the telescopic insulating sheath outward, insulating sheath is inside and outside two-layer nestable alternately, the length of two insulation sleeves is 55% of electric conductor extension limit length, one end of ectonexine insulation sleeve is separately fixed on the electric conductor mounting bracket of below and on the nonmetal spacer of top, and nonmetal spacer drives and its relative another layer insulating sheath of insulating sheath lifting slippage of fixing during with the lifting column lifting; The importing of power supply and leading-out terminal are connected in the electrode stake at two ends up and down.

8. the desk with lowering or hoisting gear according to claim 4 is characterized in that: the seat plinth is provided with an electric conductor mounting bracket by load crossbeam in the position, lifting column chamber is installed, and the electric conductor mounting bracket is provided with three electrode connection stake installing holes; The top in the third level lifting column chamber directly over this electric conductor mounting bracket is provided with a nonmetal spacer, on the nonmetal spacer and under electric conductor mounting bracket relative position be provided with equally three electrode connection stake installing holes; Telescopic electric conductor is made of telescopic antenna or spring, in the electrode connection stake installing hole on nonmetal spacer above two ends are separately fixed at and the electric conductor mounting bracket of below, be provided with insulation sleeve and insulation spacer in the electrode connection stake installing hole of lower end electric conductor metal mounting bracket; Telescopic electric conductor is provided with the telescopic insulating sheath outward, insulating sheath is inside and outside two-layer nestable alternately, the length of two insulation sleeves is 55% of electric conductor extension limit length, one end of ectonexine insulation sleeve is separately fixed on the electric conductor mounting bracket of below and on the nonmetal spacer of top, and nonmetal spacer drives and its relative another layer insulating sheath of insulating sheath lifting slippage of fixing during with the lifting column lifting; The importing of power supply and leading-out terminal are connected in the electrode stake at two ends up and down.

9. the desk with lowering or hoisting gear according to claim 6 is characterized in that: the seat plinth is provided with an electric conductor mounting bracket by load crossbeam in the position, lifting column chamber is installed, and the electric conductor mounting bracket is provided with three electrode connection stake installing holes; The top in the third level lifting column chamber directly over this electric conductor mounting bracket is provided with a nonmetal spacer, on the nonmetal spacer and under electric conductor mounting bracket relative position be provided with equally three electrode connection stake installing holes; Telescopic electric conductor is made of telescopic antenna or spring, in the electrode connection stake installing hole on nonmetal spacer above two ends are separately fixed at and the electric conductor mounting bracket of below, be provided with insulation sleeve and insulation spacer in the electrode connection stake installing hole of lower end electric conductor metal mounting bracket; Telescopic electric conductor is provided with the telescopic insulating sheath outward, insulating sheath is inside and outside two-layer nestable alternately, the length of two insulation sleeves is 55% of electric conductor extension limit length, one end of ectonexine insulation sleeve is separately fixed on the electric conductor mounting bracket of below and on the nonmetal spacer of top, and nonmetal spacer drives and its relative another layer insulating sheath of insulating sheath lifting slippage of fixing during with the lifting column lifting; The importing of power supply and leading-out terminal are connected in the electrode stake at two ends up and down.

10. the desk with lowering or hoisting gear according to claim 2, it is characterized in that: described desktop stabilizing mechanism is made of flexible tooth bar group and synchronous gear wheels, flexible tooth bar group is that the toothed rack bar shaped square column applying slip identical with another root thickness arranges, and the synchronous gear wheels are that circular shaft two ends respectively are fixedly installed an identical gear; Flexible tooth bar be about two groups arranged side by side, be symmetricly set on respectively the both sides of the single lifting column in desktop below, connect with the synchronous gear wheels between the two and dynamically control, the two ends of flexible tooth bar group are the engaging lug on Connection Block plinth and the table top with bearer respectively; Tooth bar and the bar shaped square column slip bond end of two flexible tooth bar groups are respectively established a pair of slippage spacer, two ends with the spacer of synchronous gear shaft installing hole are fixedly installed on respectively bar shaped square column one end both sides, two synchromesh gears are installed on the tooth bar that meshes respectively two symmetries that are arranged on the flexible tooth bar group that overlaps with the slip of bar shaped square column in the synchromesh gear installing hole, and the lower end of two bar shaped square columns is hingedly fixed in a rearward position on plinth both sides; Another group is separately fixed at the both sides of tooth bar slip bond end with an end of the spacer of stay hook, the other end of this spacer then slides and hooks the bar shaped square column, and the upper end of the tooth bar of two symmetries is articulated in respectively on the engaging lug of table top with bearer of front side, single lifting column both sides desktops below; The symmetrical synchronously level and smooth telescopic moving of two tooth bars and bar shaped square column.

11. the desk with lowering or hoisting gear according to claim 3, it is characterized in that: described desktop stabilizing mechanism is made of flexible tooth bar group and synchronous gear wheels, flexible tooth bar group is that the toothed rack bar shaped square column applying slip identical with another root thickness arranges, and the synchronous gear wheels are that circular shaft two ends respectively are fixedly installed an identical gear; Flexible tooth bar be about two groups arranged side by side, be symmetricly set on respectively the both sides of the single lifting column in desktop below, connect with the synchronous gear wheels between the two and dynamically control, the two ends of flexible tooth bar group are the engaging lug on Connection Block plinth and the table top with bearer respectively; Tooth bar and the bar shaped square column slip bond end of two flexible tooth bar groups are respectively established a pair of slippage spacer, two ends with the spacer of synchronous gear shaft installing hole are fixedly installed on respectively bar shaped square column one end both sides, two synchromesh gears are installed on the tooth bar that meshes respectively two symmetries that are arranged on the flexible tooth bar group that overlaps with the slip of bar shaped square column in the synchromesh gear installing hole, and the lower end of two bar shaped square columns is hingedly fixed in a rearward position on plinth both sides; Another group is separately fixed at the both sides of tooth bar slip bond end with an end of the spacer of stay hook, the other end of this spacer then slides and hooks the bar shaped square column, the upper end of the tooth bar of two symmetries is articulated in respectively on the engaging lug of table top with bearer of front side, single lifting column both sides desktops below; The symmetrical synchronously level and smooth telescopic moving of two tooth bars and bar shaped square column.

12. the desk with lowering or hoisting gear according to claim 4, it is characterized in that: described desktop stabilizing mechanism is made of flexible tooth bar group and synchronous gear wheels, flexible tooth bar group is that the toothed rack bar shaped square column applying slip identical with another root thickness arranges, and the synchronous gear wheels are that circular shaft two ends respectively are fixedly installed an identical gear; Flexible tooth bar be about two groups arranged side by side, be symmetricly set on respectively the both sides of the single lifting column in desktop below, connect with the synchronous gear wheels between the two and dynamically control, the two ends of flexible tooth bar group are the engaging lug on Connection Block plinth and the table top with bearer respectively; Tooth bar and the bar shaped square column slip bond end of two flexible tooth bar groups are respectively established a pair of slippage spacer, two ends with the spacer of synchronous gear shaft installing hole are fixedly installed on respectively bar shaped square column one end both sides, two synchromesh gears are installed on the tooth bar that meshes respectively two symmetries that are arranged on the flexible tooth bar group that overlaps with the slip of bar shaped square column in the synchromesh gear installing hole, and the lower end of two bar shaped square columns is hingedly fixed in a rearward position on plinth both sides; Another group is separately fixed at the both sides of tooth bar slip bond end with an end of the spacer of stay hook, the other end of this spacer then slides and hooks the bar shaped square column, the upper end of the tooth bar of two symmetries is articulated in respectively on the engaging lug of table top with bearer of front side, single lifting column both sides desktops below; The symmetrical synchronously level and smooth telescopic moving of two tooth bars and bar shaped square column.

13. the desk with lowering or hoisting gear according to claim 10, it is characterized in that: the rear side in single lifting column first order lifting column chamber is fixedly installed one or two vertical stability column of existing side by side, the lower end of stability column is fixed on the rear side of first order lifting column by a locating dowel lower carriage, the upper end is fixed on the upper end of first order lifting column by another stability column upper bracket, establish on the locating dowel one can be on vertical stability column the vertical stability column slippage of the hound cover of slippage up and down, when desktop is down to when minimum, the slippage cover is in vertical stability column lower end, the lower end of two symmetrical hounds is connected in the left and right sides of slippage cover, the other end of hound respectively angled left-right symmetry is connected on the desktop bottom bracket engaging lug, when lifting column rose, the slippage cover rose along vertical stability column slippage simultaneously with hound; Hound can be the single lifting column both sides under the desktop that are symmetricly set in, and also can adopt the V-arrangement group to be symmetricly set in lifting column both sides under the desktop.

14. the desk with lowering or hoisting gear according to claim 13 is characterized in that: lifting column also can be two lifting columns, at this moment, then uses the fixing two-tube slippage cover of existing side by side.

15. the desk with lowering or hoisting gear according to claim 11, it is characterized in that: the rear side in single lifting column first order lifting column chamber is fixedly installed one or two vertical stability column of existing side by side, the lower end of stability column is fixed on the rear side of first order lifting column by a locating dowel lower carriage, the upper end is fixed on the upper end of first order lifting column by another stability column upper bracket, establish on the locating dowel one can be on vertical stability column the vertical stability column slippage of the hound cover of slippage up and down, twin columns then use the fixing two-tube slippage cover of existing side by side, when desktop is down to when minimum, the slippage cover is in vertical stability column lower end, the lower end of two symmetrical hounds is connected in the left and right sides of slippage cover, the other end of hound respectively angled left-right symmetry is connected on the desktop bottom bracket engaging lug, when lifting column rose, the slippage cover rose along vertical stability column slippage simultaneously with hound; Hound can be the single lifting column both sides under the desktop that are symmetricly set in, and also can adopt the V-arrangement group to be symmetricly set in lifting column both sides under the desktop.

16. the desk with lowering or hoisting gear according to claim 15 is characterized in that: lifting column also can be two lifting columns, at this moment, then uses the fixing two-tube slippage cover of existing side by side.

17. the desk with lowering or hoisting gear according to claim 12, it is characterized in that: the rear side in single lifting column first order lifting column chamber is fixedly installed one or two vertical stability column of existing side by side, the lower end of stability column is fixed on the rear side of first order lifting column by a locating dowel lower carriage, the upper end is fixed on the upper end of first order lifting column by another stability column upper bracket, establish on the locating dowel one can be on vertical stability column the vertical stability column slippage of the hound cover of slippage up and down, twin columns then use the fixing two-tube slippage cover of existing side by side, when desktop is down to when minimum, the slippage cover is in vertical stability column lower end, the lower end of two symmetrical hounds is connected in the left and right sides of slippage cover, the other end of hound respectively angled left-right symmetry is connected on the desktop bottom bracket engaging lug, when lifting column rose, the slippage cover rose along vertical stability column slippage simultaneously with hound; Hound can be the single lifting column both sides under the desktop that are symmetricly set in, and also can adopt the V-arrangement group to be symmetricly set in lifting column both sides under the desktop.

18. the desk with lowering or hoisting gear according to claim 17 is characterized in that: lifting column also can be two lifting columns, at this moment, then uses the fixing two-tube slippage cover of existing side by side.

19. the desk with lowering or hoisting gear according to claim 1, it is characterized in that: rear side is established a desk lamp, computer display establishing mounting bracket on top, lifting column third level post chamber, mounting bracket is fixed on third level post chamber upper end rear side, also can be installed on the encorbelmenting of desktop load trailing arm third level post chamber rear side; The establishing support is overlooked and is V-arrangement, end one side at the fork of described V-arrangement is provided with Desk lamp support inserting column installing hole, peg graft for commercially available establishing desk lamp, opposite side is provided with the display/panel bracket mounting socket, display screen will not design same table with telescopic display screen special stand according to different model before interface forms unified standard, described establishing support also can directly prolong encorbelmenting of both sides desktop load trailing arm third level post chamber rear side, and arrange and jack is installed thereon, consist of the left and right sides single-column arranged side by side establishing support of encorbelmenting.

20. the desk with lowering or hoisting gear according to claim 2, it is characterized in that: rear side is established a desk lamp, computer display establishing mounting bracket on top, lifting column third level post chamber, mounting bracket is fixed on third level post chamber upper end rear side, also can be installed on the encorbelmenting of desktop load trailing arm third level post chamber rear side; The establishing support is overlooked and is V-arrangement, end one side at the fork of described V-arrangement is provided with Desk lamp support inserting column installing hole, peg graft for commercially available establishing desk lamp, opposite side is provided with the display/panel bracket mounting socket, described establishing support also can directly prolong encorbelmenting of both sides desktop load trailing arm third level post chamber rear side, and arrange and jack is installed thereon, consist of the left and right sides single-column arranged side by side establishing support of encorbelmenting.

21. the desk with lowering or hoisting gear according to claim 3, it is characterized in that: rear side is established a desk lamp, computer display establishing mounting bracket on top, lifting column third level post chamber, mounting bracket is fixed on third level post chamber upper end rear side, also can be installed on the encorbelmenting of desktop load trailing arm third level post chamber rear side; The establishing support is overlooked and is V-arrangement, end one side at the fork of described V-arrangement is provided with Desk lamp support inserting column installing hole, peg graft for commercially available establishing desk lamp, opposite side is provided with the display/panel bracket mounting socket, described establishing support also can directly prolong encorbelmenting of both sides desktop load trailing arm third level post chamber rear side, and arrange and jack is installed thereon, consist of the left and right sides single-column arranged side by side establishing support of encorbelmenting.

22. the desk with lowering or hoisting gear according to claim 4, it is characterized in that: rear side is established a desk lamp, computer display establishing mounting bracket on top, lifting column third level post chamber, mounting bracket is fixed on third level post chamber upper end rear side, also can be installed on the encorbelmenting of desktop load trailing arm third level post chamber rear side; The establishing support is overlooked and is V-arrangement, end one side at the fork of described V-arrangement is provided with Desk lamp support inserting column installing hole, peg graft for commercially available establishing desk lamp, opposite side is provided with the display/panel bracket mounting socket, described establishing support also can directly prolong encorbelmenting of both sides desktop load trailing arm third level post chamber rear side, and arrange and jack is installed thereon, consist of the left and right sides single-column arranged side by side establishing support of encorbelmenting.

23. the desk with lowering or hoisting gear according to claim 5, it is characterized in that: rear side is established a desk lamp, computer display establishing mounting bracket on top, lifting column third level post chamber, mounting bracket is fixed on third level post chamber upper end rear side, also can be installed on the encorbelmenting of desktop load trailing arm third level post chamber rear side; The establishing support is overlooked and is V-arrangement, end one side at the fork of described V-arrangement is provided with Desk lamp support inserting column installing hole, peg graft for commercially available establishing desk lamp, opposite side is provided with the display/panel bracket mounting socket, described establishing support also can directly prolong encorbelmenting of both sides desktop load trailing arm third level post chamber rear side, and arrange and jack is installed thereon, consist of the left and right sides single-column arranged side by side establishing support of encorbelmenting.

24. the desk with lowering or hoisting gear according to claim 6, it is characterized in that: rear side is established a desk lamp, computer display establishing mounting bracket on top, lifting column third level post chamber, mounting bracket is fixed on third level post chamber upper end rear side, also can be installed on the encorbelmenting of desktop load trailing arm third level post chamber rear side; The establishing support is overlooked and is V-arrangement, end one side at the fork of described V-arrangement is provided with Desk lamp support inserting column installing hole, peg graft for commercially available establishing desk lamp, opposite side is provided with the display/panel bracket mounting socket, described establishing support also can directly prolong encorbelmenting of both sides desktop load trailing arm third level post chamber rear side, and arrange and jack is installed thereon, consist of the left and right sides single-column arranged side by side establishing support of encorbelmenting.